/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ts, rule } from "qvog-dsl";

const SEVERITY = 2;
const DOC_PATH = 'docs/no-settimeout-string.md';
const DESCRIPTION = 'Passing a string to setTimeout executes dynamic code, which can lead to security vulnerabilities. Use a function instead of a string.';

export default rule()
  .match(ts.isCallExpression)
  .when(node => {
      // 判断是否调用的是 setTimeout
      const expr = node.expression;
      if (ts.isIdentifier(expr) && expr.getText() === "setTimeout") {
          // 检查第一个参数是否是字符串字面量
          const firstArg = node.arguments[0];
          return firstArg && ts.isStringLiteral(firstArg);
      }
      return false;
  })
  .report({
      severity: SEVERITY,
      description: DESCRIPTION,
      docPath: DOC_PATH,
  });
